ASP1616CV Oil Separator is a spin-on type crankcase breather filter for DFL Dongfeng heavy truck engine ventilation system. It captures lubricating oil mist from blow-by gas inside crankcase, drains recovered oil back into engine block while venting clean gas into intake circuit. This aftermarket replacement separator solves oil loss from breather pipe, oil contamination on surrounding parts and intake fouling caused by filter medium clogging, internal sealing failure and coalescence material aging of old units. Reliable oil-gas separation reduces carbon buildup on intake valve and turbo assembly, cutting environmental pollution and oil consumption for Dongfeng heavy trucks running long-haul freight and heavy-load transportation.

Product Advantages High-performance coalescing filter media traps fine oil mist efficiently under continuous engine vibration. Integrated anti-backflow structure prevents collected oil from being re-carried by airflow. The material resists degradation from hot blow-by gas and engine oil. Every oil separator undergoes bubble test and oil drainage calibration before shipment, OEM thread and sealing groove support simple spin-on installation during engine maintenance.

Applicable Models Designed for Dongfeng DFL series heavy-duty commercial trucks, widely used for intercity bulk cargo and highway heavy hauling.

FAQ

Q1: What fault symptom indicates a failed crankcase oil separator?
A1: Oil drips out from breather outlet, oil level drops quickly and intake pipe accumulates oil sludge.
Q2: Why should the breather hose be inspected while replacing this separator?
A2: Blocked hose creates excessive crankcase pressure, which speeds up separator overload and failure.
Q3: Can this oil separator be cleaned and reused?
A3: No, the coalescing layer saturates permanently; cleaning will destroy filtration efficiency.